Article Center By 99notes
Source: National Center for Nutrition and Dietetics of the American Dietetic Association and its Foundation
Learning to judge servings sizes takes a little practice. And, since carrying around measuring cups and a scale just isn't practical, these examples will help you make quick estimates.

Food of this weight   is the same size as
3 ounces of meat, poultry or fish = Deck of playing cards, cassette tape or the palm of a woman's hand
1 ounce of meat, poultry or fish = Matchbook
1 cup of fruit or yogurt = Baseball
1/2 cup of chopped vegetables = Three regular ice cubes
1 medium potato = Computer mouse
1 cup of potatoes, rice or pasta = Size of a fist or a tennis ball
1 medium orange or apple = Baseball
1 standard bagel = Hockey puck
1 chopped fresh leafy greens = 4 lettuce leaves
2 tablespoons peanut butter = Golf ball
1 ounce of cheese = Four dice or a tube of lipstick
1 slice of cheese = 3.5-Inch computer disk
1 cup Crackers = 5 whole wheat crackers
2 rye crispbreads
7 square or round crackers
1 cup grapes = 32 seedless grapes
1 cup banana = 8” to 9” long
1 cup watermelon = 1 small wedge (1” thick)
1 cup Strawberries = 8 large berries
1/2 cup of cooked vegetables = 6 asparagus spears
7-8 baby carrots or carrot sticke
1 ear of corn
3 spears of broccoli